Scientific Method Practice

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable

• independent variable

• data

• control group

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant

• The amount of sunlight

• The type of music

• The type of liquid

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate

• type of exercise

• amount of exercise

• type of day exercise occurs

The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph

• Atmospheric carbon dioxide levels are responsible for global temperature change.

• Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.

• Atmospheric carbon dioxide levels have remained the same over the past century.

• Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda. The dependent variable in this experiment is the

• type of soda given to each group

• amount of soda given to each group

• pulse rate of each group

• age of participants in each group

Tags

NGSS.HS-PS1-5

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

• independent variable

• dependent variable

• control variable

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

If I study for my scientific method test, then I will have a better test score. What is the dependent variable?

• Scientific Method
• Studying
• Independent variable
• Test score

What would the INDEPENDENT variable be in an experiment testing which  paper airplane design goes furthest?

• the paper used
• the paper airplane design
• the distance of each plane's flight
• how hard the plane is thrown

Tags

NGSS.MS-PS2-2

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment